annual capacity of 48.8 million tonnes, and manufactures and markets ordinary portland cement, portland blast furnace slag cement and portland pozzalana cement. It also manufactures ready mix concrete. The company has eleven integrated plants, one white cement plant, twelve grinding units and five terminals — four in India and one in Sri Lanka. UltraTech Cement is the country’s largest exporter of cement clinker. The export markets span countries around the Indian Ocean, Africa, Europe and the Middle
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output by the energy input. A high EROI means you get a lot of energy out for very little energy expended. This infographic puts hydroelectricity, wind and coal as the best performers, while natural gas, solar and nuclear deliver a much lower return on this measure: Source: Scientific American The reason hydroelectric and wind power do so well on this measure is mainly due to the relatively small amounts of energy needed to build dams and
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world are in a crisis, and something needs to be done about our dependency on oil and coal. We need to explore alternative fuels and really take a look at what we are doing to the environment. The United States Congress should reduce emissions from oil and coal by funding research and helping to advance the technology involved with alternative fuels. America is a country that is literally fueled by oil and coal. We currently consume 20 million barrels a day, at a cost of 1.4 billion dollars per
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acidic because the carbon dioxide and water react with each other and form carbonic acid. Carbonic acid is a very weak acid. When the pH level of rainwater falls below this range, it becomes acid rain (conserveegergyfuture.com, 2013). Acid rain affects plants directly and decreases the quality of soil and reduced fertility of the soil. The adverse effects of acid rain are severe where there is more concentration of sulfur dioxide and nitrogen oxide (science.opposingviews, 2015). Acid rain has many negative
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Two years ago, a massive coal-ash spill in Tennessee awakened Americans to the fact that the billion tons of coal we use each year doesn’t vanish into thin air when it’s burned. In 2008 alone, U.S. power plants produced nearly 100 million tons of coal ash; combined with other coalburning residues, such as gypsum, the total was 133 million tons. Much of that waste is mixed with water and kept in clay-lined ponds, often remarkably close to rivers, underground wells, and residential areas. On Dec
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be a power plant. The plant first burns coal (Potential energy converted to kinetic energy) to boil water that in turn spins turbines that produces electricity. All the energy is transferred to the other but only 40% of the original energy produced becomes electricity the remaining 60% becomes radiant energy and unusable due to the multiple changes in the form of energy. Power plants that use coal, are using a type of fossil fuel otherwise hydrocarbons resulting from dead animals and plants from
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HEALTH AND SAFETY CONCERNS IN POWER SECTOR The power sector is prone to many accidents and mishaps due to the nature of the working conditions of the power generation plant. The following are the major health and safety concerns in the power sector: * Exposure of workers and public to radioactive material * Uncontrolled release of radioactive material leading to contamination and exposure off site. * Conventional construction hazards and working near live equipment. * Health problems
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ideology and is now the main focus for some scientists. There have been many debates and arguments on how to reduce and stop global warming. These ideas can range from turning off and unplugging unused electronics, carpooling, and even planting more plants. The most
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requirement. Coal seam gas which has widely been used in industry is considered as an new energy. Therefore, coal seam gas is playing a vital role in many countries. For instance, coal seam gas industry can provide outstanding economic revenue for Australia (Hamawand , Yusaf, & Hamawand, 2013, p. 552). However, the extraction of coal seam gas encounters opposition because it would bring serious contamination to farmland and environment . This essay will outline the merits of exploiting the coal seam
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Iloilo Design Paper by Gino P. Jardinico BS Mechanical Engineering Student: 2011-15731 Submitted to the Department of Mechanical Engineering College of Engineering University of the Philippines In Partial Fulfilment of the Requirements of ME 188 Power Plant Engineering Department of Mechanical Engineering College of Engineering University of the Philippines Diliman Quezon City December 2015 ii Abstract The study is aimed (1) to quantify the demand for fuel requirements and powerplant capacity
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